WordPress is a free and open source blogging tool and content management system (CMS) based on PHP and MySQL. It has many features including a plug-in architecture and a template system. It is used by over 25% of Alexa Internet‘s “top 1 million” websites and as of August 2011 manages 22% of all new websites. Currently the most popular CMS in use on the Internetnet.
It was first released on May 27, 2003, by Matt Mullenwegas a fork of b2/cafelog. As of December 2011, version 3.0 had been downloaded over 65 million times.
Users may install and switch between themes. Themes allow users to change the look and functionality of a WordPress website or installation without altering the informational content. Themes may be installed by using the “Dashboard” administration tool, or by uploading theme folders via FTP. The PHP and HTML code in themes can also be edited for more advanced customizations.
One very popular feature of WordPress is its rich plugin architecture which allows users and developers to extend its abilities beyond the features that are part of the base install; WordPress has a database of over 18,000 plugins with purposes ranging from SEO to adding widgets.
Multi-user and multi-blogging
Prior to WordPress 3.0, WordPress supported one blog per installation, although multiple concurrent copies may be run from different directories if configured to use separate database tables. WordPress Multi-User was a fork of WordPress created to allow multiple blogs to exist within one installation that is able to be administered by a centralized maintainer. WordPress MU makes it possible for those with a website to host their own blogging community, as well as control and moderate all the blogs from a single dashboard. WordPress MU adds eight new data tables for each blog.
WordPress MU merged with WordPress as part of the 3.0 release.
Native applications exist for Android, iOS (iPhone, iPod Touch, iPad) Windows Phone 7, and BlackBerry which provide access to some of the features in the Admin panel and work with WordPress.com and many WordPress.org blogs.
Other features of note
WordPress also features integrated link management; a search engine-friendly, clean permalink structure; the ability to assign nested, multiple categories to articles; and support for tagging of posts and articles. Automatic filters are also included, providing standardized formatting and styling of text in articles (for example, converting regular quotes to smart quotes). It also supports the Trackback and Pingback standards for displaying links to other sites that have themselves linked to a post or article.
Version 3.9 of WordPress, named “Smith” in honor of jazz organist Jimmy Smith, is available for download or update in your WordPress dashboard. This release features a number of refinements that we hope you’ll love. See this link for more information WordPress 3.9
In 2007 WordPress won a Packt Open Source CMS Award.
In 2009 WordPress won the Packt best Open Source CMS Award.
In 2010 WordPress won the Hall of Fame CMS category in the 2010 Open Source Awards.
In 2011 WordPress won the Open Source Web App of the Year Award at The Critters.
The YouTube video on what is WorPress see the link Click Here
All information was obtained from Wikipedia.